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Acquisitions and Dispositions - Additional Information (Detail) (USD $) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2014 | Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014
Significant Acquisitions And Disposals [Line Items] |  |  |  |
(Loss) gain on the sale of assets |  | (175,000)us-gaap_GainLossOnSaleOfOilAndGasProperty | $ (353,000)us-gaap_GainLossOnSaleOfOilAndGasProperty |
Conger Exchange Transaction |  |  |  |
Significant Acquisitions And Disposals [Line Items] |  |  |  |
(Loss) gain on the sale of assets | 282,700,000 us-gaap_GainLossOnSaleOfOilAndGasProperty / us-gaap_BusinessAcquisitionAxis = rrc_CongerExchangeTransactionMember |  |  |
Cash proceeds from sale of assets | 145,000,000 us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets / us-gaap_BusinessAcquisitionAxis = rrc_CongerExchangeTransactionMember |  |  | 145,000,000 us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets / us-gaap_BusinessAcquisitionAxis = rrc_CongerExchangeTransactionMember
Net operating income prior to disposition |  |  | 12,400,000 rrc_DispositionOfAssetsOperatingIncome / us-gaap_BusinessAcquisitionAxis = rrc_CongerExchangeTransactionMember |
Sale and exchange transaction, closing date |  | 2014-06 |  |
Miscellaneous Proved and Unproved Properties |  |  |  |
Significant Acquisitions And Disposals [Line Items] |  |  |  |
Proceeds from sale of oil and gas |  | 10,700,000 us-gaap_ProceedsFromSaleOfOilAndGasPropertyAndEquipment / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = rrc_MiscellaneousSalesMember | 294,000 us-gaap_ProceedsFromSaleOfOilAndGasPropertyAndEquipment / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = rrc_MiscellaneousSalesMember |
(Loss) gain on the sale of assets |  | (175,000)us-gaap_GainLossOnSaleOfOilAndGasProperty / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = rrc_MiscellaneousSalesMember | (353,000)us-gaap_GainLossOnSaleOfOilAndGasProperty / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = rrc_MiscellaneousSalesMember |
West Texas |  |  |  |
Significant Acquisitions And Disposals [Line Items] |  |  |  |
Proceeds from sale of oil and gas |  | 10,500,000 us-gaap_ProceedsFromSaleOfOilAndGasPropertyAndEquipment / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = rrc_WestTexasMember |  |

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- Definition The net gains or losses associated with certain assets that were disposed of that do not qualify as discontinued operations. This represents the net operating income the Company recognized prior to asset disposition. + References No definition available. + Details
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- Definition Amount of gain (loss) on sale or disposal of proven and unproven oil and gas properties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition Aggregate cash proceeds received from a combination of transactions in which noncurrent assets are sold, which may include the sale of a business, an investment in an affiliate (including an equity method investee), property, plant and equipment and intangible assets. Excludes sales of trading, available-for-sale, and held-to-maturity securities. + References No definition available. + Details
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